The color segments signify how the sales of a particular country are performing, compared with the target values. The red reference line indicates the sales value. The color red does not signify anything else and is used only to highlight sales, so you can use any other color of your choice. The sales can be more than the set target, so the Max range limit is set to 1.2 times the target value. Due to this setting, the target value is represented by the black line at the end of the bar. Sure, sales can surpass targets by more than 20 percent, so the Max range figure can be altered to, say, 1.5 times the target value. One look at the graph and we can easily make out whether we are in the red zone or are doing better than expected.